Improvement in milk coolers or warmers



D. D. WHITAKER.

MILK GOOLER 0R WARNER. No.175.ZZZ. Patented March 21,1876.

ATTORNEYS.

N-PEI'ERS, PHDTO-LITHGGRAPHER, WASHINGTON. D C.

. UNITED STATES DAvID D. WHITAKER, OF cARTHAeE, NEW YORK.

PATENT QFFIGE.

IMPROVEMENT IN MlLK COOLERS OR WARMERS.

Specification forming part of Letters Patent No. 175,222, dated March 21, 1876; application filed February 28, 1876.

To all whom it may concern Be it known that 1, DAVID D. WHITAKER, of Carthage, in the county of Jefferson and State of New York, have invented a new and Improved Milk-Cooler, of which the following is a specification.

In the accompanying drawing, Figure 1 represents a top view Fig 2, a vertical longitudinal section on line 0 c, Fig. 1; and Fig. 3, a top view of the ice or cold water reservoir,

supplied with a hinged. metal cover.

Similar letters of reference indicate corresponding parts.

My invention relates to an improved milkcooler, that may be readily and economically warmed in Winter to produce the required temperature of the milk; and the invention consists of a milk-pan set into a rack or box with air-space all around, which is cooled by zigzag bottom pipes and side pipes, con nected to an ice or cold water dish or receptacle above the pan, the whole being covered by a cloth screen to keep the cold air confined.

In the drawing, A represents the rack or box into which the milk-pan B is placed, so

that an air-space at the bottom and-sides is formed all around the pan. The top edge of the pan is bent over into the shape of a tube, a, which leaves a narrow space between the turned-down edge and the walls of the pan, for the circulation of cold air along the upper edge of the same.

The pan B rests, by the rim-tube 01,011 coldwater tubes 1), that extend around the inclined sides of the pan, and are connected at one end by an inclined pipe, D, rising above the pan to suitable heights at the center of the same, to an ice or cold water dish or receptacle,O, placed in detachable manner-on suitable supports d. Thetubes-d connect at the other end with the discharge-pipe for conducting ofl' thespent water.

The ice or cold water receptacle may be closed by a hinged cover to regulate the degree of cold above the milk-pan.

The bottom of the ice-dish G is made conical and attached at one side to pipe D, communicatin g by perforations therewith, and at the other side by a vertical drop-plate to the same pipe, which carries all the sweat-drops along pipe D to the bottom of the rack.

.When cold water is used the lower holes of pipe D are corked up, so that the water from the supply-pipe may fill it up to a level with the top hole, being conducted then to the side tubes and to zigzag tubes D, arranged on the bottom of the rack. The cold water, running through the side and bottom tubes, cools the air-space, around the pan, while the ice or cold water receptacle reduces the temperature above the milk-pan.

The entire milk-pan is covered by a cloth screen, E, that may be hinged atone cnd to be thrown therein in open position, or suspended at the center by cord and pulley, to be raised at pleasure. The frame of the cover fits into beveled grooves e of the rack, to be seated tightly thereon and keep the 'cold air confined to the milk, excluding at the same time dust, flies, and other impurities.

Thus the cold air is made to act from all sides on the milk, and brings the same thereby in an economical manner to the required temperature in warm weather, the pipes serving also in cold weather to admit Warm air through the discharge-pipe, the same passing around and above the pan in opposite direction to the flow of cold water in warm weather.

The ice-receptacle and co'ver may be readily removed to give access all around the pan and rack, for the purpose of cleaning the same.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- 1. The combination of a milk-pan and rack, having air-space between the same, with cooling side and bottom tubes and a communicating ice or cold receptacle above the pan, to cool the air around and above milk pan, substantially in the manner set forth.

2. The combination of a milk-pan and rack with a detachable cover or screen, fitting tightly on the rack to keep cold air confined, substantially as and for the purpose specified.

DAVID D. WHITAKER.

Witnesses:

E. E. WHITAKER, G. F. LEWIS. 

